System and method for vehicle power management
US9365115B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2012 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Oct 1, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A power management system for a vehicle having wheels and an electric machine operable to provide torque to drive at least one of the wheels includes a first energy storage system capable of supplying power to operate the electric machine. The system also includes a second energy storage system capable of supplying power directly to at least one vehicle load at a lower voltage than the first energy storage system. A voltage conversion device is operable to reduce a voltage of the power supplied by the first energy storage system to the lower voltage to charge the second energy storage system when the vehicle is in a key-off state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.